Traffic Signals

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VOLUMI GAS :scharge contoller; CONTa#39;D In each case, the allowed gap is
initially longer than the set passage time and is ... a normal triode vacume tube
connected to a source of A.C. voltage as shown in plate 2.5 Ar With the detector
relay in the ... the grid to cathod volta?e is increased thereby increasing that
across R 1 .and hence the charge on timing condenser C. ... Timers based on this
circuit have the great advantage that they are to a large extent self -compensating
as regardsanbsp;...

Title

:

Traffic Signals

Author

:

J. T. Hewton

Publisher

:

- 1957

ISBN-13

:

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